Gets the sample that is at the given index for the given tag in the given
list and copies it into the variable pointed to by sample. Free the sample
with Sample.unref when it is no longer needed. You can retrieve the
buffer from the sample using Sample.getBuffer and the associated
caps (if any) with Sample.getCaps.
Gets the sample that is at the given index for the given tag in the given list and copies it into the variable pointed to by sample. Free the sample with Sample.unref when it is no longer needed. You can retrieve the buffer from the sample using Sample.getBuffer and the associated caps (if any) with Sample.getCaps.
Free-function: gst_sample_unref